Finding the Fourth Proportional to 2,878,315.20, 4,320,237.60 and 1,459,972.80
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Solution
The fourth proportional to 2,878,315.20, 4,320,237.60 and 1,459,972.80 is: 2,191,361.59
Step by Step Solution
- Step 1: Write the proportion equation
2,878,315.20 : 4,320,237.60 = 1,459,972.80 : x - Step 2: Convert to fraction form
2,878,315.20/4,320,237.60 = 1,459,972.80/x - Step 3: Cross multiply
2,878,315.20x = 4,320,237.60 × 1,459,972.80 - Step 4: Simplify right side
2,878,315.20x = 6,307,429,385,537.28 - Step 5: Solve for x
x = 6,307,429,385,537.28/2,878,315.20 - Step 6: Final answer
x = 2,191,361.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.